Melt butter in a heavy saucepan.
Add flour and stir to make a roux.
Cook, stirring until it forms a smooth paste.
Turn burner to warm and continue cooking and stirring 2-3 minutes r until golden brown. Let cool.
In a double broiler, heat 1 1/2 c of the whipping cream almost to a boil.
Add cayenne pepper and then slowly add roux, whisking to keep smooth.
Whisk or stir until mixture begins to thicken.
Whip remaining 1/2 c cream. Add to sauce mixture along with 2 tbsp of the parmesan cheese. Keep warm.
Sauté or broil bacon until 3/4 done. Set aside.
Toast bread. Cut diagonally. Place four halves on each plate. Top with slices of turkey. Ladle on sauce and put bacon on top.
Sprinkle with a tbsp parmesan cheese.
Place under broiler until golden brown.
